Object
Description:Bubble Nebula in Emission-Line
Type:Planetary Nebula
Constellation:Cassiopeia
Distance:11,000 ly
Image
Date:June 28, 2014
Location:Palomar Mountain, CA
Exposure:SII 5x15 (bin 2x2), Ha 10x15 (bin 1x1), OIII 5x15 (bin 2x2) as RGB
Notes:Cropped 50%
Equipment
Optics:DSI RC10C Corrected RC Astrograph
Focal Length:1867mm @f/7.3
Mount:Astro-Physics 900GTO
Camera:FLI ML-6303E
Focuser:Built-in Secondary Focuser
Filters:FLI CFW2-7, Astrodon 3nm SII, Ha, OIII
Software:Maxim DL, CCDStack, Photoshop
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